cfec8735d0936c750e88bb85754d057bcbbf3a04c57a1f326797662c2aef9adc

Analysis

max time kernel
91s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2022 09:18

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General

Target

cfec8735d0936c750e88bb85754d057bcbbf3a04c57a1f326797662c2aef9adc.exe
Size

68KB
MD5

76292ef37f505af3f0f79a2e4d154886
SHA1

2405ed0026381d15dbb3f53a0ef399a143a344bc
SHA256

cfec8735d0936c750e88bb85754d057bcbbf3a04c57a1f326797662c2aef9adc
SHA512

25de6e5482f5d50ec20ec9b53cf01cdabddaf84f1a20502132f62d38ee6fc4c2e53e87baa3d8dd8a1c594f53724415600cb386dfbe2619863ae53a9fe1642ad1
SSDEEP

1536:/jBGTyj8QvFxKSNOJpNQRFqNQdvciyw6:rBGTe9OZAEw6

Score

7^/10

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	cfec8735d0936c750e88bb85754d057bcbbf3a04c57a1f326797662c2aef9adc.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	cfec8735d0936c750e88bb85754d057bcbbf3a04c57a1f326797662c2aef9adc.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	cfec8735d0936c750e88bb85754d057bcbbf3a04c57a1f326797662c2aef9adc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Enumerates processes with tasklist 1 TTPs 1 IoCs

Process Discovery

T1057

pid	Process
2620	tasklist.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2620	tasklist.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2804	cfec8735d0936c750e88bb85754d057bcbbf3a04c57a1f326797662c2aef9adc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2804 wrote to memory of 3632	2804	cfec8735d0936c750e88bb85754d057bcbbf3a04c57a1f326797662c2aef9adc.exe	81
PID 2804 wrote to memory of 3632	2804	cfec8735d0936c750e88bb85754d057bcbbf3a04c57a1f326797662c2aef9adc.exe	81
PID 2804 wrote to memory of 3632	2804	cfec8735d0936c750e88bb85754d057bcbbf3a04c57a1f326797662c2aef9adc.exe	81
PID 3632 wrote to memory of 2620	3632	cmd.exe	83
PID 3632 wrote to memory of 2620	3632	cmd.exe	83
PID 3632 wrote to memory of 2620	3632	cmd.exe	83

C:\Users\Admin\AppData\Local\Temp\cfec8735d0936c750e88bb85754d057bcbbf3a04c57a1f326797662c2aef9adc.exe
"C:\Users\Admin\AppData\Local\Temp\cfec8735d0936c750e88bb85754d057bcbbf3a04c57a1f326797662c2aef9adc.exe"
1⤵
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c tasklist&&del cfec8735d0936c750e88bb85754d057bcb
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3632
- - C:\Windows\SysWOW64\tasklist.exe
    tasklist
    3⤵
    - Enumerates processes with tasklist
    - Suspicious use of AdjustPrivilegeToken
    PID:2620

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Process Discovery

T1057

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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